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Patents Granted on 1981-03-__
Patents 1 - 4 of 4
First set of recordsLast set of records
4,253,351Mar. 03, 1981H. AllenCork extractorlever cork extractors
4,254,895Mar. 10, 1981E.G. CheakApparatus for automatic alignment and attachment of a doorjamb and stopspecialty machines
4,255,861Mar. 17, 1981H. Suwa, K. NakataElectrically Digital Display Micrometermicrometers
4,256,295Mar. 17, 1981E.A. EgnerAdjustable Clampclamps
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